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| − | ===Applications of BBa_K1055000===
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| − | ''Characterization mKate''
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| − | [[Image:mKate_bac.png|400px|thumb|right|Figure 1. '''Peller of ''E.coli'' Bl21(DE3) cells with expressed mKate. Left side: without UV radiation, right side: with UV radiation ''']]
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| − | mKate is a red fluorescent protein that we want to use as a acceptor for FRET (Figure 3). According to [http://www.evrogen.com/products/basicFPs.shtml Evrogen] mKate has an excitation maximum at 588 nm and an emission maximum at 633 nm. Figure 2 shows that the excitation maximum is at 579 nm and the emission maximum is 611 nm. The emission maximum is big enough to get stimulated by [https://parts.igem.org/wiki/index.php?title=Part:BBa_K1055001 LSSmOrange], the other fluorescent protein. Of course, we checked also the emission and excitation of our BL21(DE3) cells (data not shown) and we can eliminate the theories that these cells disturb this florescence measurement.
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| − | [[Image:Spectra_mKate.png|400px|thumb|left|Figure 2. '''Excitation spectrum (dashed line) and emission spectrum (solid line) of mKate with marked maximums''' ]]
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| − | [[Image:MKate-LSSmOrange_FRET_Pair.png|400px|left|thumb|Figure 3. '''Overlay of excitation spectrum (dashed line) and emission spectrum (solid line) of mKate and LSSmOrange ''']]
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| − | As shown in Figure 1 and 4, the expression of mKate is not toxic towards the bacterial host ''E.coli'' Bl21(DE3). The growth rate was in a usual time scale of approximately 30 minutes.
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| − | [[Image:Grow_log.png|400px|thumb|center|Figure 4. '''Semi logarithmic scaled growth curves of ''E.coli'' BL21(DE3) WT, BL21DE3 mKate and BL21DE3 LSSmOrange. The ln (OD600 values) are plotted against the time [min].''']]
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| − | === References ===
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| − | Daria M. Shcherbakova et al. (2012) An Orange Fluorescent Protein with a Large Stokes Shift for Single-Excitation Multicolor FCCS and FRET Imaging. J. Am. Chem. Soc. 134 (18), 7913–7923
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| − | http://www.evrogen.com/products/basicFPs.shtml
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| | ===User Reviews=== | | ===User Reviews=== |
Revision as of 18:15, 12 October 2013
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